/*
 * Licensed to the Apache Software Foundation (ASF) under one
 * or more contributor license agreements.  See the NOTICE file
 * distributed with this work for additional information
 * regarding copyright ownership.  The ASF licenses this file
 * to you under the Apache License, Version 2.0 (the
 * "License"); you may not use this file except in compliance
 * with the License.  You may obtain a copy of the License at
 *
 *    http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing,
 * software distributed under the License is distributed on an
 * "AS IS" BASIS, WITHOUT WARRANTIES OR CONDITIONS OF ANY
 * KIND, either express or implied.  See the License for the
 * specific language governing permissions and limitations
 * under the License.
 */

package org.apache.qpid.ra.tm;


import javax.naming.InitialContext;
import javax.transaction.TransactionManager;

import org.slf4j.Logger;
import org.slf4j.LoggerFactory;

public class GlassfishTransactionManagerLocator
{
    private static final Logger _log = LoggerFactory.getLogger(GlassfishTransactionManagerLocator.class);

    private static final String TM_JNDI_NAME = "java:appserver/TransactionManager";

    public TransactionManager getTm() throws Exception
    {
        InitialContext ctx = null;
        TransactionManager tm = null;

        try
        {
            ctx = new InitialContext();
            tm = (TransactionManager)ctx.lookup(TM_JNDI_NAME);
        }
        catch(Exception e)
        {
            _log.error("Error attempting to location TM " + e.getMessage());
        }
        finally
        {
            try
            {
                if(ctx != null)
                {
                    ctx.close();
                }
            }
            catch(Exception ignore){}
        }

        return tm;
    }
}
